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    <script>
        // 1.5 求1-100之间个位数不为3的数的累加和。
        var sum = 0;
        for (var i = 1; i <= 100; i++) {
            // 个位数为3的数,取余3时候余数等于循环数-1
         if(i%10==3){
            continue;
         }
         sum+=i
         
        }
        console.log(sum);

        
      
        
    </script>
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